Lathe-bed



K. AND A. H. OLSSON.

LATHE BED.

APPLICATION FILED SEPT. 22, 1919.

1,389, 87, PatentedSept. 6,1921.

fnvenford' I K 0655010 Alf. 0655017/ UNITED STATES PATENT OFFICE.

KARL OLSSON AND ANDERS HILMER OLSSON, OF LIDKOPING, SWEDEN, ASSIGNORS TO AK'I'IEBOLAGET LIDKOPINGS MEKANISKA VERKSTAI), OF LIDKOTPING, SWEDEN, A

CORPORATION.

LATHE-BED.

Application filed September 22, 1919.

To all whom it may concern:

' Be it known that we, KARL OLssoN and ANDnRs HTLMER OLssoN, both subjects of the King of Sweden, residing at Lidkoping, Sweden, have invented a new and useful Lathe-Bed, of which the following is a specification.

In lathe beds with front and back slides the latter are often provided with longitudinal gibs, preferably of V-shaped cross section, to guide the saddle or carriage.

The slots of the saddle fitting these gibs reduce the strength of the saddle to a considerable extent, this being particularly the case with the front slot in which the saddle is subjected to the most severe strain due to the pressure of the tool. Thus, the greatest I strength possible should be provided at this place.

To attain this, the front slideof the lathe bed is lowered relatively to the back slide in such manner that the upper edge of the gib of the front slide is situated at the. same level or lower than the back slide, or at any rate lower than the upper edge of the gib of the back slide. dently a considerable increase of the bulk of the saddle or the supportand a correspond,- ing increase in the strength thereof is at tained.

The accompanying drawing illustratesby way of example a lathe bed constructed .ac-

cording to the invention, the same. being 7 Specification of Letters Patent.

By this arrangement evi-.

Patented Sept. 2;, 1921. Serial No. 325,422.

with the guiding gibs 3 and 4 respectively. The front gib 3 is situated according to the invention with its upper edge at a level with the back slide 2, that is to say the front slide 1 is lowered so much below the back slide 2 as corresponds to the height of the gib 3, and thus a corresponding increase in the thickness of the material, counted in a vertical direction, is obtained at the fore edge of the saddle or the carriage. Consequently, the saddle becomes rigid enough to take up even the greatest tool pressure without vibrating.

The saddle or carriage rests on the back slide 2 and the front gib 3, while the back gib 4- and the front slide 1 are used for the guiding of the tool-stock exclusively.

What we claim as newand desire to secure by Letters Patent of the United States is In a lathe bed front and back slides, gibs on said slides to guide the saddle or carriage,

the front slide being arranged lower than the back slide and the gib of the front slide being arranged at approximately the same level as the back slide for the purpose of obtaining a corresponding increase in the thickness of material counted in a vertical direction at the fore end of the saddle or carriage.

In witness whereof we have hereunto set our hands in the presence of two witnesses.

, KARL O'LSSON.

ANDERS I-IILMER OLSSON. lVitnesses G; EKHoL-M, BENGT VVEsTnnLUND. 

